Hi, For this occasional GPU lockup when returns from STR/STD, I find followings(when the problem happens): The value of SRBM_STATUS is whether 0x20002040 or 0x20003040. Which means: * HI_RQ_PENDING(There is a HI/BIF request pending in the SRBM) * MCDW_BUSY(Memory Controller Block is Busy) * BIF_BUSY(Bus Interface is Busy) * MCDX_BUSY(Memory Controller Block is Busy) if is 0x20003040 Are MCDW_BUSY and MCDX_BUSY two memory channels? What is the relationship among GART mapped memory, On-board video memory and MCDX, MCDW? CP_STAT: the CSF_RING_BUSY is always set. There are many CP_PACKET2(0x80000000) in CP ring(more than three hundreds). e.g. r[131800]=0x00028000 r[131801]=0xc0016800 r[131802]=0x00000140 r[131803]=0x000079c5 r[131804]=0x0000304a r[131805] ... r[132143]=0x80000000 r[132144]=0xffff0000 After the first reset, GPU will lockup again, this time, typically there are 320 dwords in CP ring -- with 319 CP_PACKET2 and 0xc0033d00 in the end. Are these normal? BTW, is there any way for X to switch to NOACCEL mode when the problem happens? Thus users will have a chance to save their documents and then reboot machine. Regards, -- Chen Jie _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
